Climate & Weather Guide · Guinea-BissauClimate & Weather Guide in Guinea-Bissau
Climate zones, seasonal temperatures, rainfall patterns, and best travel times
Guinea-Bissau is a small West African nation with a tropical climate characterized by distinct wet and dry seasons. The country experiences warm temperatures year-round, with average highs around 33°C in January and cooler periods during the harmattan winds. The climate is heavily influenced by the Atlantic Ocean and monsoon patterns, creating a humid tropical environment with significant seasonal rainfall variation. The landscape includes coastal plains, river valleys, and inland regions, all experiencing similar tropical conditions with high humidity levels throughout the year.
Summer Average
25-30°C
Winter Average
20-33°C
Climate Types
Tropical Savanna and Tropical Monsoon
1000-2000 mm
2,500-3,000 hours annually
65-80%
Regional Climate Variations
Coastal Region (Bissau and Surrounding Areas)
The capital region experiences warm, humid tropical conditions with moderate maritime influence. January temperatures average 32-33°C with lows around 20°C, while August sees cooler averages around 26°C. This area receives substantial rainfall during the monsoon season and maintains high humidity year-round due to Atlantic proximity. The coastal zone is characterized by mangrove forests and river deltas, creating a distinctly humid tropical environment with consistent warmth.
Warm and humid year-round with strong maritime influence; expect frequent moisture and occasional intense rainfall during monsoon season; ideal for those comfortable with tropical heat and humidity
Interior Savanna Region (Gabú and Central Areas)
The inland regions experience slightly drier conditions than coastal areas while maintaining tropical savanna characteristics. Temperatures remain warm throughout the year with similar January highs around 33°C. These areas receive less maritime influence but still experience significant monsoon rainfall. The landscape transitions to savanna woodland with more seasonal variation in precipitation patterns compared to coastal zones.
Warm tropical savanna climate with pronounced wet and dry seasons; less humid than coastal areas but still tropical; suitable for those seeking warmer inland conditions with distinct seasonal patterns
Guinea-Bissau maintains a consistently warm tropical climate year-round, with temperatures rarely dropping below 20°C and regularly reaching 30-33°C. The country experiences a pronounced monsoon season bringing high rainfall (1000-2000mm annually), with coastal areas receiving more moisture than interior regions. For potential residents and expats, the climate offers warm, predictable conditions but requires adaptation to high humidity, intense seasonal rainfall, and tropical weather patterns.
More Insights for your Move to Guinea-Bissau
Comprehensive guides and data-driven analysis.
Budget & Expenses
Is your lifestyle affordable? From grocery prices to utility bills, see how costs compare to your home.
Read guideLong-term Expat Guide
Visa pathways, tax obligations, and healthcare access for long-term expats and digital nomads.
Read guideVisas & Residency
Don't get lost in bureaucracy. Understand fast-track investment paths and the residency process for expats.
Read guide